Fig. 1. Classification and chromosomal localization of intermediate filament genes and pseudogenes. The table lists intermediate filament genes, pseudogenes and gene fragments identified in the draft of the human genome. Keratin genes 8 and 18, which gave rise to 62 and 35 processed pseudogenes, respectively, are marked with a red bar. Potential novel keratin genes/gene fragments in the type I and II clusters are indicated by an asterisk. Chromosomal localization of pseudogenes is indicated by numbers in brackets. Pseudogenes related to hair keratin genes are denoted by ; indicates type I keratin genes recently identified (Bawden et al., 2001). These are most closely related to K10. We propose to name them according to the Moll nomenclature as indicated in the text (Moll et al., 1982). The expression pattern of the newly identified keratin genes remains to be determined.